CPC Subgroup
B23K 26/386 of blind holes
Full Title
Working by laser beam, e.g. welding, cutting or boring > Removing material (B23K26/55, B23K26/57 take precedence) > by boring or cutting > by boring > of blind holes
B23K 26/386 Working by laser beam, e.g. welding, cutting or boring > Removing material (B23K26/55, B23K26/57 take precedence) > by boring or cutting > by boring > of blind holes